Home / 7,666.40-10,576.56-5,565.92

Finding the Fourth Proportional to 7,666.40, 10,576.56 and 5,565.92

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Solution

The fourth proportional to 7,666.40, 10,576.56 and 5,565.92 is: 7,678.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,666.40 : 10,576.56 = 5,565.92 : x
  2. Step 2: Convert to fraction form
    7,666.40/10,576.56 = 5,565.92/x
  3. Step 3: Cross multiply
    7,666.40x = 10,576.56 × 5,565.92
  4. Step 4: Simplify right side
    7,666.40x = 58,868,286.84
  5. Step 5: Solve for x
    x = 58,868,286.84/7,666.40
  6. Step 6: Final answer
    x = 7,678.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.